This paper describes the principle of microprocessor ultrasonic range finder.
主要介绍微电脑超声测距仪的工作原理。
SCM comprehensive analysis of the probe signal processing, and the ultrasonic range finder function.
各探头的信号经单片机综合分析处理，实现超声波测距仪的各种功能。
In order to solve the above problems, we develop ultrasonic range-finder which is based on pseudorandom code.
为了解决上述问题，我们研制了基于伪随机码调制的超声波测距。
For the sake of improving on traditional the means of telemeter, this article studys and designs Ultrasonic Range Finder Based on Singlechip.
为了改进传统测距方法的不足，本文研制单片机控制的超声波测距仪。
Submarine sonar and the future ultrasonic rangefinder will connect with automation intelligent, and other range finder instrument integration, formed much rangefinder.
而且未来的超声波测距仪将同自动化智能化接轨，与其他的测距仪器集成，形成多测距仪。
Introduces the principle of ultrasonic range measurement, and analyses the main error sources of ultrasonic range measurement, designs an ultrasonic range measurement system with high precision.
介绍了超声波测距的原理，分析了超声波测距产生误差的原因，设计一种高精度超声测距系统。
Ultrasonic rain gauge rised up the measuring range and accuracy by adopted the ultrasonic technique to measure precipitation.
超声波雨量计采用超声波技术测量雨量，大大提高了其测量范围和精度。
An ultrasonic detector for wall rock crack is introduced which is able to detect coal mine underground wall rock looseness range and cracks.
介绍了一种超声波围岩裂隙探测仪，可用于探测煤矿井下围岩松动范围及裂隙情况。
This paper introduces property and feature of PIC16C711, analyses theory of measure distance by ultrasonic wave, gives hardware circuit and software design of range finder for back a car.
介绍了PIC 16C711的性能和特点，分析了利用超声波测距的原理，给出了应用pic 16 C 711设计汽车倒车测距器的硬件电路和软件设计。
And when ultrasound was applied, an ultrasonic power range of 60~150 W was suitable for the membrane fouling control in the experimental system.
对于利用超声控制膜污染，适于本试验系统的超声电功率范围在60~150W之间。
The size of ultrasonic container should be selected according to sound field effective range.
在超声试验中应根据声场的有效范围选择使用容器的大小。
The structure of the cavitation bubble cloud is featured by the regional distribution of cavitation bubbles. Within a range of ultrasonic power levels the structure remains stable.
空化泡群的结构以空化泡在声场中的区域化分布为特征。在一定功率范围内空化泡群的结构保持稳定。
The self-adaptable control of output voltage could be realized under certain range by adding a APFC in ultrasonic generator and adjusting voltage feedback network with digital potentiometers.
本文在超声发生器中加入功率因数校正电路（APFC），并利用单片机控制数字电位器实现了对电压反馈网络的调节，从而实现APFC输出电压在一定范围内的自适应控制。
Using the ultrasonic wave detector to probe the flexible range of the extraction tunnel, grasping the rule of deformed tunnel directs the supporting design of the tunnel bolt.
利用超声波探测仪探测回采巷道的松动范围，掌握巷道的变形破坏规律，以此指导巷道的锚杆支护设计。
The Reliant PowerSlit line of Slitter Rewinders offers the full range of slitting solutions from shear cutting, razor, score, hot knife, and ultrasonic.
瑞里恩特公司的分切复卷机系列生产线提供全套的分切解决方案，包括剪切割，剃，划线，热刀和超声波。
Preliminary test and study showed that phased array ultrasonic system was better in signal-to-noise ratio, more sensitive to defects, wider in testing range and higher in working efficiency...
初步试验和研究表明，相控阵超声无损检测系统比传统单探头超声无损检测具有信噪比高、缺陷分辨力强、有效探伤范围宽以及工作效率高等特点。
In this paper, the method that distance-measurement with ultrasonic is applied to height-measurement of coupler and range finder is presented.
介绍了超声波测距在车钩高度测量中的实现方法，研制出了测距仪。
The ultrasonic sensor produces a data carrier utilizing very high frequencies that are outside the human's audible range.
超声波传感器的数据载体产生的可听范围内使用非常高的频率，不属于人类。
On the base of the active sonar theory, This thesis provide active ultrasonic detecting system that application in low-speed moving object of short-range in shallow sea surroundings.
论文文摘本论文基于主动声纳的基本原理，提出适用于浅海环境水下近程低速目标主动声探测系统。
These high intensity ultrasonic sound waves (20 ~ 65khz) are out of the range of hearing of humans are most household pets, but pests.
这些高强度的超声波(20 ~ 65khz)不在人类和大部分家养宠物的听觉范围内，但能被害虫听到。
Ultrasonic cleaning is a good fit for a wide range of applications, from removing swarf and grinding and polishing residue to treating parts covered in oil, grease, or layers of paint.
超声（波）清洗是工业领域一种广泛应用的新方法，可以去除工件表面的磨削，研磨，抛光后表面残留的碎屑，去除工件表面残留的油污，甚至可以去除油漆层。
Ultrasonic cleaning is a good fit for a wide range of applications, from removing swarf and grinding and polishing residue to treating parts covered in oil, grease, or layers of paint.
超声（波）清洗是工业领域一种广泛应用的新方法，可以去除工件表面的磨削，研磨，抛光后表面残留的碎屑，去除工件表面残留的油污，甚至可以去除油漆层。
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